Superheater.



G. D. YQUHG. v SUPEBHEATEB. Arrmqumn mum FEB. a, 1912.

Patented Sept. 16, 1913.

3 SHEETS-S HEET 1.

NVENTO v WITNESSES TTORNE Y.

c. 11. YOUNG. SUPEBHBATER.

APPLICATION FILED FEB. 3, 1912'. 7 1,073,205. Patented Sept. 16, 1913. 3 SHBIFTB-BEEBT 2.

IN VEN TOR.

- A TTORN E Y.

WITNESSES v.

G. D. YOUNG.

SUPERHEATER.

uruonmn FILED mm. a, 1912.

Patented Sept. 16, 1913.

IN VEN T OR.

3 SHEETS-SHEET 3.

B Y W TTORNEY.

drawings',' wherein':

. end of the smoke Be it lmownthat 1,. cams STATES PATENT OFFICE.

' ennannsn. YoUne, ersmaoonn; rnnns rnvmm.

' 4 Specification of Letters Patent. Apnfieatien filed February 3, 1912. Serial No. 675,371.

. snrnnnnnrnn' Patented $ept. s, 1913.

.plicable to the ordinary type. of locomotive and havingan improvedmeans for connect: mg theheaders and the tubes;- t-he provision of a superheater wherein the parts tnay be readily andconveniently assembled and dis;-

assembled; and in general the'provision, ofja simplified and improved form of construe tion having a maximum degree of durability and efiiciency. One embodiment of their):v

vention' is illustrated in the accompanying Figure -1 is alongitudinal vertical sectionthrough the front end of a. locomotive boiler provided" with the" improved super hea e Fig-21s a two-par vi a he st box of the ing to the rear, thegl'ig-htihand portion of the figure being in section through the smoke box in front of, the superheater; the left hand portion of the in section on the line IL-II. of F5 1- the super-heater tubes removed i' re nthe' fire tubes; and Fig, 3 is a two-part. view looking downward, the upper half of the view being a plan view, and lower half of the view being ahorizentalsection along the line III-1H at Fig. 2;

Referring first to the general arrange ment of parts as gs. 2"and 3;

. hown n Fi 1 is the smoke box of the locomotivel2lare the other of its ends the fire tubes opening into such smoke box; 3 is the dry or outlet pipe leading from the steam dome of the locomotive jand" lying in the steam space above'thefire-tubes; 4- is the header casting dividedby'i'the partition 5 to the header. chambers 6 and 7;-8; 9, '10

and 11 are coils of superheater tubes, each one of which has one ofits frontends.fc'om-- municating with the header chamber 6 and communicating with the header chamber 7 chamber -7 to chestof the flocomotive, only one of such-j pipes-being shown in'Figs.:1;a 1'1d 2, but another p pe being provided on the l com e ook? each of the diamond .ei ht bolts 1'1 "and 18' .tubes which .and 12. is one of the] out removing such other side Icerrespiomling in arrangement and construction tothe pipe shown. Only 7 the time tubes carrying superheater tubes are, llustrated, but it will he understood -l f t the boiler has the usual numben of other fire tubes. The bottoms of the header. chambers 6 and 7 areprovlded with the series of openings '1 1 a indi et 'i i s and eachtpauf th ing-s13 and His covered by a header plate 15, which extends across the bottom of hath chambers as-indicatedi in Fig. 1. .In the partieularlconstruction- .illus'- trated there are eightoi these closure plates. Ea h end Qt a h n e P ate sfipw d d with four tube openins (Fi 3.) so that each plate .carries-theeiids of idu-r super heater tubes 8, 9', l0 andll', lyiil'g HD1119: d ately b low such late inthe four-j firetu s i llbes'lyi ng immeliately heneatheach closure Pla may be r ga ded a 21 set, endwi l e ppa t that a y ens" e th -"eigh et un rh at re my e em ei de:

ese "snp h a r n n e tly y detachi g "the si e" Plat thereabove from'the header eastingyand the set .endwise out oi-the fire tubes.

Q tq eS .qf e 'bemhers entw we fm wl h re e- 5a a h ges. Qt the. c osure meansefime studs 17' (:Eigsaz nnd'ii). The

plates 15 are secured to these rihs hy iclo snreplatesare also secured by other studs 18:, whrehstnds. are threaded into bosses 19" fa e of the bottom wall oi ,the headers in order to giveladditional metal or. the casting opposite-each opening 13,14 in the bottom-of the casting, and these openings are closed by the -.removable plugs 20. This provides'a means whereby any particular. tube may be tightened or cutout and fand'thus permit longer studs. to be used.

are expanded into the closure plates1 5, openings are provided in top wall replaced without removing the. closure plate" 15 carrying such giveaccess to the top of the headers withtube. The removable cover 1 plates 21 immediately above the. headers headers from the boiler. 7

-ing-the supe'rheater It will be noted that these cover plates are not subject to any boiler pressure. The'ar rangement whereby the endsofthe. tubesm'ay h e-tightened is particularly advanta geous as the superheater tubes in the upper fire tubes are not removable withoutremov-- therebeneath in the same row;- In operation, the" steam from the dome passes throu hthe dry pipe '3 and into the header chain er 6. From this point it passes through the various superhea'ter' coils 8, 9,- 1

10 and 11, 'andinto the header chamber 7 from which point it is conducted to the steam chests ofthe locomotiveby mea'fis of the Pipes 12.

It will be understood that the construe?- tion" as shown and described is merely-illus v 'trative of the invention aid that various.

changes in matter of detail might be made. without departing from the spirit of the invention; The header. castin is shown aslocated above the fire tubes. Qfimt it will be v understood that the invention is not limited to thisparticular location ,of the header casting, and that the terms top. and bottom as used with'reference to the walls of this header are used generically to mean tho se walls which are remote from and adjacent to the fire tubes respectively. Various means other than the ones shown for'securing the wrought metal closure plates lfito the header casting, might obviously beu'sed although the construction shown and described is, the preferred one.

Having thus described my invention and illustrated its use, what I claim as new an'd the openings-injthe bottom; a series'bf clo sure eplates each-of which extends across a.

"bottom opening in both chambersand lies opposite a set of fire tubes ;'-superheater tubes" in the said fire tubes-each having one end expanded into one of said closure plates and "opening into oneofthe said bottom 'opennigs in one header chamber and having the other end expanded into the same closure plate but op'eni intoi'one of the bottom openings in the r header chamber wherethe plurality of superheater tubes lying in the set of fire tubes-opposite such closure plate; an inlet'to one headerchamber; an

by eac closure plate'carries both ends of outletfrom the other header chamber; .re-

movable closures .for the said 0 mugs in' t'he tops of the header chambers; w ereby-the ends of the. Sllperheater tubes. injthe'c-losure't plates are accessible thro Wand-a removable plate. in e smoke box wall opposite the saidremovable closures w 2. Thecombination with a boiler having hisuch openings a smoke box at-its endand a plurality of fire tubes; of a header in the smoke box extending-transversely of the ends of the fireptubes and divided into two chambers; super-heater tubesin the fire tubes each having one end expanded into'the bottom of one chamber and theoth'er end expanded into the bottom of the other chamber,- the. said chambers having openings in .theirwalls' opposite the "said expanded tube endsand the" said smoke box having an opening in. its .wall opposite said opening in the chambersyremovable closuremeansfor the said openings in the walls of the headers and removable closure meanSTfo'rthe said'opening in the wallof the smoke box.f In testimony whereof I have hereunto signed my'name in the presence of the subscribedwitnes'ses.

CHARLES D; O NG,

Witnessesi vGrao. B. H0011,

W. J. MCFARLAND. 

